bias
What bias means in Mathematics GCSE, as defined for Pearson Edexcel.
Definitions of bias
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Check what you remember
Read the wording for your board, then hide it and explain bias in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A feature of a sample, such as being taken at one time of day, that may make it not representative and the estimate unreliable.
A systematic departure from the relevant fair or intended probability model, giving some outcomes an unintended advantage.
Topics that use bias
- Probability (Pearson Edexcel GCSE)
- Statistics (Pearson Edexcel GCSE)
Related terms
- box plot
- choosing an average
- Conditional probability
- Continuous Data
- correlation and causation
- Cumulative frequency graph
- Discrete Data
- Equally likely outcomes
Using bias in the exam
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